Process of producing color effects on paper and fabrics



Aug. 4, 1925. 1,548,261

K. FRANZ PROCESS OF PRODUCING COLOR EFFECTS ON PAPER AND FABRICS Filed May 18, 1923 Patented Aug. 4, 1925.

UNITED STATES PATENT OFFICE.

KUNO FRANZ, 0F FRANKIORT-O'N-THE-MAIN, GERMANY, ASSIGNOR T0 FABBWERKE VORM. MEISTER LUCIUS & BBfiNING, OF HOCHST-ON-THE-MAIN, GERMANY, A COR- PORATION 0F GERMANY.

PROCESS OF PRODUCING COLOR EFFECTS ON PAPER AND FABRIGS.

Application filed May 18, 1923. Serial No. 639,854.

To all whom z'tmm/ concern Be it known that I, KUNO FRANZ, a citizen of Germany, residing at Frankfort-onthe-Main, Germany, have invented certain new and useful Improvements in Processes of Producing Color Effects on Paper and Fabrics, of which the following is a specification.

Color effects on paper and fabrics can be produced by flowing a plurality of streams of liquids having different coloring efiects, such as streams of differently colored dyestuif solutions, into the trough formed by two rollers between which the paper or fabric to be colored is passed. A particular mode of carrying out the above-mentioned process consists in producing currents in the dye-solutions in order to obtain effects of a still greater variety and peculiarity. In the process just described it is advantageous to produce such currents by causing the dyeand other solutions or suspensions to flow down an inclined surface into the trough formed by the two rollers. By running the liquids down the inclined surface there is given to them a certain energy which causes the desired agitation of the dye-solutions and suspensions accumulated between the rollers. This surface may be disposed in a special manner or a part of the surface of one or both of the two rollers may be used as such, in which case by modifying the size of the rollers and their position, the rate at which the solution runs down can be regulated in any desired manner. The surface may also be given the form of an endless band which is passed between the rollers, in which case, if this endless band is pressed with suflicient force against one of the two rollers, the second roller may be dispensed with.

By special devices, for instance by acting with compressed air or with a stream of water on the solutions collected between the rollers or by the influx under pressure of several of the ingredients or by scrapers, or oscillating or rotating bodies, the flow of the liquids and consequently their distribution on the inclined surface may be varied as desired.

Various ways of carrying out the present invention are illustrated on the accompanying drawing. In Fig. 1 A is a plane which can be inclined at any angle adapted to deliver the dye solutions into the trough formed by the rollers B and C.

Fig. 2 illustrates the use of the surface of the roller 0 for the delivery of the dye solutions into the trough formed by the rollers B and C.

Fig. 3 illustrates the use of the surfaces of both of the rollers B and C for the delivery of the dye solutions into the trough formed by the rollers.

' Fig. 4 illustrates the use of the endless band E for delivering the dye solutions into the trough formed by the rollers B and C.

Fig. 5' illustrates the use of an endless band E pressed against the roller C- for the delivery of the dye solutions into the trough formed by the band and the roller C, the second roller B being dispensed with.

In each instance the coloring liquid is delivered over an inclined surface to the line of contact of one or both of the compression surfaces with the web of paper or fabric to be colored.

Having now described my invention, what I claim is:

1. Process of producing color effects upon paper and fabrics which comprises passing a web of the paper or fabric to be colored between moving converging compression surfaces and flowing a stream of a coloring liquid down an inclined surface to the line of contact of one of said compression surfaces with said web.

2. Process of producing color effects upon paper and fabrics which comprises passing a web of the paper or fabric to be colored between moving converging compression surfaces and flowing a plurality of streams of liquids of different coloring effects down inclined surfaces to the line of contact of said compression surfaces with said web.

3. Process of producing color effects upon paper and fabrics which comprises passing aweb of the paper or fabric to be colored between moving converging compression surfaces and flowing a plurality of streams of liquids of different coloring effects down an inclined surface to the line of contact of one of said compression surfaces with said web.

4. Process of coloringpa'per and fabrics as defined in claim 1 in which one of the compression surfaces is the inclined surface down which the coloring liquid is flowed.

Process of coloring paper and fabrics as defined in claim 2 in which the compression surfaces are the inclined surfaces down which the streams of liquid are flowed.

6. Process of coloring paper and fabrics as defined in claim 1 in which the coloring liquid collected between the compression surfaces 1s agitated. 1

7. Process of coloring paper and fabrics as defined in claim 3 in which thc'streams of liquids flowing down the inclined surface are caused to deviate from their normal course. I

In testimony whereof, I afiix my signature.

KUNO FRANZ. \Vitnesses:

W. W. Sonora, C. C. L. B. WYLES. 

